The holy ceremonial robes of the High Priest were kept in one of the four guard towers of the Antonia Fortress and were worn only on Passover, Yom Kippur and other important religious feast days. The Romans had realized the tremendous power of the office of the High Priest and had taken custody of the garments as a precautionary measure. In the century before the Roman occupation in 63 BC, the king of Israel had also been the high priest and both offices had been hereditary. The Romans had abolished the kingship and had made the office of high priest appointive, always subject to their approval. Nonetheless, in Jesus' day the high priest remained the most powerful figure in the Jewish nation.